From the Super Mario Wiki, the Mario encyclopedia

Are you sure the penguins from Super Mario 64 are Bumpties? I think they are just called penguins. I think Bumpties are specifically the short, squat penguins from Yoshi's Island and Paper Mario. Check out the Wikipedia article "Bumpty". Super Mario 64 is never mentioned. 23:23, 6 May 2006 (EDT)

Yes... I was thinking of that as I typed it, but, according to some other Mario databases (though, not official ones), those penguins were indeed bumpties. If it bothers you, though, you can get another picture and take out my reference to SM64. --DarkInsanity (talk)

It's possible that they're all the same thing but what about the black, white and yellow teacher penguin in Galaxy? Those Bumpty things don't ever look like that, do they? Georgedrake Z